mpv-omniphony (integration build)

Rolling integration build of mpv-omniphony, compiled against Omniphony main
(liborender built from source). For testers — NOT a stable release.
Rebuilt daily and on demand; assets here are replaced each run.

Linux: use the .AppImage (any x86_64 desktop with glibc ≥ 2.38);
the .zip runs only on Ubuntu 24.04 and derivatives.

NOT bundled: the decoder bridge plugin (*_bridge.dll / .so).
Provide it via --ad-orender-bridge-path=<absolute path> or drop it
next to mpv(.exe).